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Electro-refinement of Gold In the refinement of gold a basic solution of Au(CN)4 is electrolyzed. Gold...
Please show all work step by step and final answer. Electro-refinement of Gold In the refinement...
Please show all work step by step and final
answer.
Electro-refinement of Gold In the refinement of gold a basic solution of Au(CN)4 is electrolyzed. Gold metal and oxygen gas are produced at the electrodes. Answer the following questions by selecting the appropriate reaction Which is the overall cell reaction for this electrolysis? 4Au16CN3026H20 4Au (CN)4 120H" 4AU16CN" +302 12H+ 4Au(CN)4 6H20 2Au8CN + 6H20 2Au(CN)4 6OH 3H2 4Au(CN)4+ 120H 4Au + 16CN 302 6H20 Which half-reaction takes place at...
olo Data Х -0.8277 1.776 0.5355 1.195 -2.372 -1.185 1.224 1.507 0.595 0.983 -1.16 2H20 (1)...
olo Data Х -0.8277 1.776 0.5355 1.195 -2.372 -1.185 1.224 1.507 0.595 0.983 -1.16 2H20 (1) + 2e - H2(g) + 20H(aq) H2O2 (aq) + 2H+ (aq) + 2e - 2H20 (1) 12 (s) + 2e - 21- (aq) 2103 (aq) + 12H+ (aq) + 10 → 12 (5) + 6H20 (1) Mg2+ (aq) + 2e - Mg(s) Mn2+ (aq) + 2e – Mn (s) MnO2 (s) + 4H+ (aq) + 2e – Mn2+ (aq) + 2H20 (1) Mn04- (aq)...
A certain half-reaction has a standard reduction potential +0.14 V. An engineer proposes using this half-reactio...
A certain half-reaction has a standard reduction potential +0.14 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.80 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the hall reaction used at the cathode of this cell can have? ves, there...
Try Again Your answer is wrong. In addition to checking your math, check that you used...
Try Again Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. 0.7996 -1.676 1.692 1.49B -2.912 1.066 -2.868 Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG" for the following redox reaction. clo Data Round your answer to 5 significant digits. Ag+ (aq) + e + Ag (s) H, (8)+20H(aq) + C1, (8) + 2H,0 (1)+201 (aq) A13+...
A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction +...
A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction + O2(9)+4 H (aq)+4e' 2H20) = 1.23 V red Ered Fe+. (аq) Fe3(aq)+e = +0.771 V Answer the following questions about thiss cell Write a balanced equation for the half-reaction that happens at the cathode Write a balanced equation for the half-reaction that happens at the anode Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous...
For all of the following experiments, under standard conditions, which species could be spontaneously produced? A...
For all of the following
experiments, under standard conditions, which species could be
spontaneously produced?
A lead wire is placed in a solution containing
Cu2+
yes no Cu
yes no PbO2
yes no No reaction
Crystals of I2 are added to a solution of
NaCl.
yes no I-
yes no No reaction
yes no Cl2
A silver wire is placed in a solution containing
Cu2+
no yes Cu
no yes No reaction
no yes Ag+
Half-Reaction 8° (V) Half-Reaction 8° (V) 2.87 1.99 1.82 1.78 1.70 1.69 1.68 1.60...
A certain half-reaction has a standard reduction potential E Ted =-0.99 V. An engineer proposes using...
A certain half-reaction has a standard reduction potential E Ted =-0.99 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.90 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell O- Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have?...
A certain half-reaction has a standard reduction potential E = -0.45 V. An engineer proposes using...
A certain half-reaction has a standard reduction potential E = -0.45 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 1.00 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 0-0 . " Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell...
Use the galvanic cell notation to describe the Daniell cell. (4 marks) Using the reduction potential...
Use the galvanic cell notation to describe the Daniell cell. (4 marks) Using the reduction potential table calculate Eº for the Daniel cell. 12 marks) Calculate the equilibrium constant K for the reaction Cu2+ + Zn → Cu + Zn²+, at 25 °C. (4 marks) Standard Potentials at 25°C Half Reaction Potential Potential +2.87 V 0.000 V +2.07 V -0.04 V +2.05 V -0.13 V -1.69 V -0.14 V +1.69 V -0.23 V +1.67 V -0.26 V +1.63 v -0.28...
For the reaction below, find answers for the following 3 questions. In acidic solution, O, and...
For the reaction below, find answers for the following 3 questions. In acidic solution, O, and Mn2 ions react spontaneously 0;(&) + Mnaq) + H2O(1) 0.8) + MnO (3) + 2H+ (aq) -0.84 V 1. Calculate in Vand enter to 2 decimal places. 2. Calculate AG (kJ/mole) for the reaction shown above and enter to 1 decimal place 3. Calculate Kat 298 K Enter e notation for large or small numbers.eg, enter 6.7e-34 for 6.7*10% 6.7e34 for 6.7*10% Enter a...
Please show all work step by step and final
answer.
Electro-refinement of Gold In the refinement of gold a basic solution of Au(CN)4 is electrolyzed. Gold metal and oxygen gas are produced at the electrodes. Answer the following questions by selecting the appropriate reaction Which is the overall cell reaction for this electrolysis? 4Au16CN3026H20 4Au (CN)4 120H" 4AU16CN" +302 12H+ 4Au(CN)4 6H20 2Au8CN + 6H20 2Au(CN)4 6OH 3H2 4Au(CN)4+ 120H 4Au + 16CN 302 6H20 Which half-reaction takes place at...
olo Data Х -0.8277 1.776 0.5355 1.195 -2.372 -1.185 1.224 1.507 0.595 0.983 -1.16 2H20 (1) + 2e - H2(g) + 20H(aq) H2O2 (aq) + 2H+ (aq) + 2e - 2H20 (1) 12 (s) + 2e - 21- (aq) 2103 (aq) + 12H+ (aq) + 10 → 12 (5) + 6H20 (1) Mg2+ (aq) + 2e - Mg(s) Mn2+ (aq) + 2e – Mn (s) MnO2 (s) + 4H+ (aq) + 2e – Mn2+ (aq) + 2H20 (1) Mn04- (aq)...
A certain half-reaction has a standard reduction potential +0.14 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.80 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the hall reaction used at the cathode of this cell can have? ves, there...
Try Again Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. 0.7996 -1.676 1.692 1.49B -2.912 1.066 -2.868 Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG" for the following redox reaction. clo Data Round your answer to 5 significant digits. Ag+ (aq) + e + Ag (s) H, (8)+20H(aq) + C1, (8) + 2H,0 (1)+201 (aq) A13+...
A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction + O2(9)+4 H (aq)+4e' 2H20) = 1.23 V red Ered Fe+. (аq) Fe3(aq)+e = +0.771 V Answer the following questions about thiss cell Write a balanced equation for the half-reaction that happens at the cathode Write a balanced equation for the half-reaction that happens at the anode Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous...
For all of the following
experiments, under standard conditions, which species could be
spontaneously produced?
A lead wire is placed in a solution containing
Cu2+
yes no Cu
yes no PbO2
yes no No reaction
Crystals of I2 are added to a solution of
NaCl.
yes no I-
yes no No reaction
yes no Cl2
A silver wire is placed in a solution containing
Cu2+
no yes Cu
no yes No reaction
no yes Ag+
Half-Reaction 8° (V) Half-Reaction 8° (V) 2.87 1.99 1.82 1.78 1.70 1.69 1.68 1.60...
A certain half-reaction has a standard reduction potential E Ted =-0.99 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.90 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell O- Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have?...
A certain half-reaction has a standard reduction potential E = -0.45 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 1.00 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 0-0 . " Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell...
Use the galvanic cell notation to describe the Daniell cell. (4 marks) Using the reduction potential table calculate Eº for the Daniel cell. 12 marks) Calculate the equilibrium constant K for the reaction Cu2+ + Zn → Cu + Zn²+, at 25 °C. (4 marks) Standard Potentials at 25°C Half Reaction Potential Potential +2.87 V 0.000 V +2.07 V -0.04 V +2.05 V -0.13 V -1.69 V -0.14 V +1.69 V -0.23 V +1.67 V -0.26 V +1.63 v -0.28...
For the reaction below, find answers for the following 3 questions. In acidic solution, O, and Mn2 ions react spontaneously 0;(&) + Mnaq) + H2O(1) 0.8) + MnO (3) + 2H+ (aq) -0.84 V 1. Calculate in Vand enter to 2 decimal places. 2. Calculate AG (kJ/mole) for the reaction shown above and enter to 1 decimal place 3. Calculate Kat 298 K Enter e notation for large or small numbers.eg, enter 6.7e-34 for 6.7*10% 6.7e34 for 6.7*10% Enter a...
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